Dom V. answered 08/22/18
Tutor
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Cornell Engineering grad specializing in advanced math subjects
sin2x + cos2x = 1
Divide by sin2x to get
1 + cot2x = csc2x
Replace cot2x in the given integral
∫1-(csc2x-1) dx
∫2 - csc2x dx = 2x + cot(x) + C